disjRegexp is package{

  mentionsFruit(C) is C matches `(.*apple.*|.*orange.*)`;
  
  mentionsFruit2(C) is C matches `.*apple.*` or C matches `.*orange.*`;
  
  matchFruit() from `(.*apple.*|.*orange.*)`;
  
  content is "A Granny Smith is an apple and is green." 
  
  main() do {
    assert mentionsFruit(content);
    assert mentionsFruit2(content);
    
    assert content matches matchFruit();
  }
}